On July 20th, though, Sir Liam Donaldson, once England's chief medical officer and now the chairman of an independent watchdog committee that scrutinises the GPEI's activities, published a report which says this deadline, too, is at risk.

但7月20日，利亚姆·唐纳森发布的一份报告指出这个最后期限也正面临风险，利亚姆·唐纳森是英国前首席医疗官，现任负责审查" 全球根除脊髓灰质炎行动" 活动的独立监督委员会主席。